How to find net horizontal force with friction and applied force?

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

What is reflection, what is refraction, and what is diffraction. what some similarities or differences between the three.